Window scaffold



Aug. 10 1926.

H. WAXLER WINDOW SCAFFOLD Filed Nov 26. 1923 2 Sheets-Sheet 1 A'ITORNEY Aug. 10 1926. 1,595,842 r H. WAXLER WINDOW SCAFFOLD Filed Nov. 26, 1923 2 Sheets-Sheet 2 ATTORN E Patented Aug. 10, 1926.

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HARRY WAXLEB; OECHICAGO, ILLINOIS.

WIN-DOW SCAFFOLD.

Application filed-November 26, 192-3.

This invention relates to new. and useful improvements in Window scaffolds and more particularly to a, detachable and portable scafioldfespeci'ally adapted for use by window. washers although the same can be used for variousother purposes. The main object, ofj th'e present invention is the provision, of, a window scaffold. which can be easily and! readily attached to a window sill; and positioned; for use and readily removed, and foldedinto substantially compact form for transporting the scaffold from place to place.

Another object of my invention is the provision of a window scaffold which may be quickly and, readily attached to the window sillj andlcan be used either as a seat oras. a, standing platform so that a party. cleansing the windows may support himself in. a: convenient position for cleansing the entire, outer, surface of" a; window and at the same time include means for guarding the: party using the device to prevent his v accidentally falling from the scaffold.

A further object of my invention. is the provision of a window scaifoldwhich can be-qu-ioklyand readily fitted into position for supporting a person upon the exterior of. a Window either in a sitting; or standing. position; and" provided with suitable guards which may be quickly and readily folded onto the body of the scaffold-when notin use so as to occupya minimum space for transportation facilities.

With the above and other objects in view the invention consists in the novel features, in construction, the combination and arrangement of parts hereinafter more: fully set forth, pointed out in the claims and shown in the accompanying drawings in which Fin, 1 is a side elevation of my improved scaffoldillustrating the same in position for use.

Fig, 2 is a. top plan view;

Fig. 3 isZ-a frontelevation.

dis an enlarged transverse sectiontaken on, the line 4'-.4L of Fig. 3.

Fig. i'san enlarged longitudinal section taken on the line ofliig; 3.

Fig. 6 is an end elevation illustratinga modified form of end brace.

Fig.7 is a. top plan view of Fig. 6.

My invention is so constructed and arrangedasto facilitate the ready attachment Serial No. 6775072.

of the same toa window sillor toany other convenient part ofthe window frame and: from the accompanying drawings itwill be noted that in the present instance I" provide an attaching plate 1 which issecured to the base of the Window sill, by meansof screws 1 or other similar fastening means,- and, the plate is provided at its ends with outstanding ears 2 havingtransverse openinszs therethrough whereby my improved window scaffold may be quickly and readily attached to the supporting plate. The body of the scaffolding comprises a il -shaped frame member 3 and arranged between the side portions of the frame 3is a platform 1, the. ends of which are disposed at right angles to the body portion of the platform and riveted or otherwise secured to the arms of the frame 3, as shown. at 5. The inner: longitudinal edge of the platform 4 isprovided with a flange dextending transversely with respect to the body andof the samewidth as the sidev arms of-the frame 3.

Secured to the flange 6 are spaced angular frames 7 forming spaced perforatedears 8 through which extend the bearing sleeve 9, the ends, of said sleeve abutting the side arms of; thebody frame 3: Slid'ably mounted within the sleeve 9 are the securing pins 10 the innerends of which are arranged in spaced relation with a coil spring 11 disposed between the inner ends for normally urging said pins in opposite directions. In order to actuate the pins 10 for reciprocating them within the sleeve 9- suitable finger pieces 12' are formed upon the inner ends of the pins and are movable within a slot 13 which extends longitudinally of the sleeve S) at its intermediate portion, the finger pieces 12 normally engaging the ends 'ofthe slot to limi-t the outward sliding movement of the pins 10.

Normally the pins 10- are in a projected position as shown infFig'. 5- with their outer ends extending beyond the outer faces of the side arms of the frames 3 and in order to connect the frame with the stationary supporting plate 1, the finger pieces 12 are grasped and moved toward each other against the tension of the spring 11 so that the frame of the scaffoldmay be placed between the perforated ears 2 on the plate 1 and when the pins 10 are aligned with the openings in the ears 2 the: finger pieces 12 i are released whereby the tension of the spring 11 will urge the pins 10 outwardly projecting the ends thereof through the open ings in the ears 2 so as to securely connect the frame to the stationary supporting plate 1.

A guard rail or back rest is provided in connection with the supporting seat or platform and includes the U-shaped frame 14, the ends of which are pivotally connected to the body frame 3 at 15 with its extreme ends extending downwardly below the edge of the frame 3 and disposed at an angle as shown at 16. The body portion of the frame 14 is arranged at right angles to the body frame 3 when in an operative position as shown in Figs. 1 and 4 and is provided with a plate 17 arranged between the side arms of the frame with its ends secured to the side arms of the frame and one edge provided with flanges 18 which are secured in any suitable manner to the frame. The frame 14 is additionally braced by means of across piece 19 having its ends secured to the side arms of the frame member.

When the frame 14 is arranged in an operative position it is securely retained in this position by means of foldable braces each of which comprises the pivotally connected members 20 and 21, the member 20 having its outer end pivotally connected to one of the side arms of the body frame 3, while the member 21 is pivotally connected to one of the side arms of the frame 14, thus permitting the frame 14 to be readily folded onto the body frame 3 when not in use.

hen the scaffold is disposed in the horizontal plane for use as illustrated in Figs. 1 and 4 it is preferred to have the same securely braced beneath the platform and to this end I provide the angular brace bars 22 which are connected to the angular extending ends 16 as shown at 16 so that when these brace bars are arranged in an opera tive position they are disposed at an angle with respect to the platform for engagement with a portion of the window sill or any portion of the building surrounding the window sill to assist in supporting the platform in an operative position.

In the construction of the majority of the modern buildings at the present time the window casings are provided with means whereby a window washer or other person working about the window can readily use this means to support or assist in supporting themselves upon the window sill, this means usually comprising headed bolts or hooks and in order to provide additional means for bracing and supporting my scaffold when in use, I provide chain members 23, the lower ends of which are attached to the loops 24 which are secured to the side arms of the body frame 3. These loops 24 comprise U-shaped members having their ends disposed at right angles and riveted or otherwise secured to the side arms of the body frame 3.

In Figs. 6 and 7 I have illustrated the use of substantially rectangular end guard members 25 which are used in place of the brace members 20 and 21, said guard members being hinged to the frame 14 as shown at 26 so that they may be readily folded inwardly upon the frame 14 when not in use, The end frames 25 as illustrated are secured in an open position against movement beyond a certain pre-determined position, by means of the rod 27, one end of which is pivotally connected as at 28 to one of the end frames 25, while the other end of the rod is provided with a hook 29 adapted to engage an eye 30 carried by the other guard member 25 to securely retain these members in their proper positions when in use.

From the above it will be apparent that I have provided a comparatively simple and inexpensive structure which is to be used as a window scaffold particularly adapted for window washers whereby the operator may either use the same when in a sitting posi tion or in a standing position and at the same time be guarded against accidentally falling from the scaffold. The device can also be quickly and readily arranged in position or removed and folded into a comparatively compact form, in a very short space of time.

While I have shown and described the preferred form of my invention I wish it to be understood that various changes and alterations may be carried out during the manufacture of the same without departing from the spirit ofthe invention or the scope of the appended claims.

Having thus described my invention What I claim is 1. A Window scaffold including a body frame, a platform carried thereby, a guard frame pivotally connected to the body frame at one side, means for operatively supporting said guard frame at an angle with respect to the body frame, aligned openings at one end of the body frame, reciprocating pins having their inner ends arranged in spaced relation with their outer ends normally projecting through the openings in the body frame, means carried by said pins whereby to manually move their inner ends toward each other, and means disposed between the inner ends of said pins for normally urging them apart.

2. In combination with a stationary support, of an attaching plate connected to the support, perforated ears at each end of-the attaching plate, a scaffold including a 'U- shaped member, a platform having downturned side flanges connected to the U- shaped member, a movable guard pivotally connected to one end of the U-shaped member, folding brace members having connection with the guard and the U-shaped member whereby to support the guard at rightangles to the U-shaped member, portions of said guard extending below the U-shaped member at an oblique angle with respect to the 'U-shaped member, brace bars connected to the lower ends of the guard and operative- 10 1y disposed in the same parallel plane with the ends and means for detachably connecting the U-shaped member with the perforated ears on the plate.

In testimony whereof I aflix my signa- 15 ture.

HARRY WAXLER. 

